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World Community Grid Forums
Category: Completed Research
Forum: Human Proteome Folding - Phase 2
Thread: errors? |
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Thread Status: Active Total posts in this thread: 5
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
 40% of my work has errored out with the following error message or something very similar...*** UNHANDLED EXCEPTION **** Reason: Access Violation (0xc0000005) at address 0x00C01476 write attempt to address 0xFFFFFFDC If I am not mistaken this is telling me I have an issue with my memory or it's configuration in the BIOS. Is this correct? Although I find this a little contradictory because none of the other projects are returning any errors. Any ideas? jm190 John |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello jm190,
Here is my post about this error: http://www.worldcommunitygrid.org/forums/wcg/viewthread?thread=16066#125644 Didactylos suggests that the graphics might be the cause. The first thing to try is just a reboot. Sometimes that solves puzzling problems. Lawrence |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I usually have no problems with HPF2 units but I just had a recenty sent unit that it had run for a 1 hour and had switched to one of my other projects as it was supposed to. When it started up again it went right to 100%.
----------------------------------------This is the error message I got. 10/7/2007 7:03:56 PM|World Community Grid|Deferring communication for 1 min 0 sec 10/7/2007 7:03:56 PM|World Community Grid|Reason: Unrecoverable error for result li299_00038_12 ( - exit code -1073741819 (0xc0000005)) 10/7/2007 7:03:56 PM|World Community Grid|Computation for task li299_00038_12 finished 10/7/2007 7:03:56 PM|World Community Grid|Output file li299_00038_12_0 for task li299_00038_12 absent [Edit 2 times, last edit by Former Member at Oct 7, 2007 11:27:55 PM] |
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Dirk Gently
Senior Cruncher England Joined: Mar 1, 2005 Post Count: 153 Status: Offline Project Badges: 
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My machine has been stable for a long time, and I took my eye off the results log for quite a while, but now I find I am suddenly getting about 60% of the HFP2 results showing this error:-
----------------------------------------*** UNHANDLED EXCEPTION **** Reason: Access Violation (0xc0000005) at address 0x028DA808 write attempt to address 0x00F1C140 *** Dump of the Worker(offending) thread: *** eax=00f1c140 ebx=028dac88 ecx=000000c5 edx=00001660 esi=05ce41ac edi=07420234 eip=028da808 esp=028da870 ebp=028dac80 cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010a83 It is ONLY happening on HFP2 and I do not run graphics or screensaver. Looking at the other results in the Quorum for these workunits, I see other crunchers with errors too. The machine is overclocked (3.4GHz dual core P4 running at 4.07GHz, with 2GB DDR2 800MHz), but has been in this state for almost a year now, and is very stable in all other respects. It runs continually, apart for the odd restart after Microsoft patches etc. I am going to try a few experiments. First, from Laurence Hardins suggestion about restarting the PC - I have done this and will monitor for an improvement. Next I will try putting the processor back to rated speed, to eliminate this. I am also wondering whether HFP2 has problems when BOINC switches applications, so I will try changing this too. I would be interested in anyone else's experiences. |
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Dirk Gently
Senior Cruncher England Joined: Mar 1, 2005 Post Count: 153 Status: Offline Project Badges:
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OK, so its Me
---------------------------------------- A reduction in overclocking from 4.07GHz to 3.99GHz and no more failures on HPF2. Looks like I was very close to the limit, and something has drifted/aged. It is still baffling that only HPF2 is affected. Looks like HPF2 makes a good Memory Test! |
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